Manufacture of receptacles for liquids and gases.



3.2mm. MANUFACTURE OF REOEPTACLES FOR LIQUIDS AND GASES.

APPLICATION. FILED DEL-13,1907.

Patented Dec. 22, 1908.

- dent of 30 Kaiserplatz,

'- in conjunction,

I is very liable to become unrrsn sTAT s rnrnn'r OFFICE.

PAUL ZURN, or cassnn GERMANY.

MANUFACTURE 01E RECEPTACLES FOB LIQUIDS AND GASES.

To all whom it may concern;

Be it known that L'PAUL ZI'JRN, architect, a subject of the German Cassel, Germany, have invented certain new and useful'Improvements in the Manufacture of Receptacles for Liquids and Gases, of which the lollowing is a specification.

This invention relates to improvements in the manufacture of receptacles for liquids and gases.

In the manufacture of receptacles for liquids cnd gases a matter of primary importance, is of course, in most cases that the walls of the vessel should'be perfectly liquidtight or gas-tight. In the case of rece" tacles made of woodxir'met'al, or of wood an metal crevices. In the case of receptales made cm'en t or concrete; the inner surface is fre- ,quently coated with a dense layer of plaster which is impregnated with resin, paraffin, ceresin, or a mixture of these substances. All these methods have disadvantages which cause the vessel to become useless or at least to some extent leaky after a certain period of use.

If the rece taclc is of wood the thin coating of varnis or paint does not expand and contract uniformly with the wood, when the latter expands or contracts under the influence of atmospheric conditions, so that the coating becomes cracked, more articularly at the joints in the wall, and fina y peels oil: It the receptacle is of metal the thin coating also fails to expand and contract uniformly with the metal when changes ed temperature occur, so that the varnishor paint soon shows cracks and crevices. Moreover, the coating detached. from the metal when the receptacle is struck with a hammer or the like.

If the receptacle is of cement or concrete, with a coating of 1plaster, a long period usually elapses before t e receptacle 1s sufiiciently dry .to be impregnated. If it is impregnated decomposing eiiect on the impregnating mass. In some cases artificial hea t may be used to accelerate the drying of the vessel,

but in most'cases this is impracticable.

The purpose of the present invention is to obviate these disadvantages, and the inven- -Spsciflcation 01'. Letters Patent. Application-filed Becemher 13, 1967. Serial No. 406,356.

Emperor, and resiit usual to coat the inner I Sul'fnC-G WltlTVfllIllSh or paint-to close the '20 Patented. Dec. 22, 1908.

tion primarily consists in applying to the walls of receptacles of any material coatings consisting of substances of such nature that they form tough, hard coatings and that they can be applied in the term of layers of con siderable thickness.

The invention also provides that ill the case of cement or concretevesselstthecoating is applied in such a manner that the eement or concrete can dry normally and without a'l'lecting the coating.

According-to theinvention the coating is preferably of resin or p tch, to which may be added "ozoceritef linseed oil, paraihn, s'te'arinfceresin or the like'to increase its tough ness, and sulfur-or the'like to increase its hardness and accelerate the setting Substances other than those here named may, however, be used.

In order that the coatingmay be thick, and to increase its elasticity. and cheapness, suitable admixtures may beused, for example ground cork, asbestosfiber, a mixture of cork and asbestos, or other similar substances.

The invention isillustrated in the annexed drawing by means of examples.

Figure 1 is a sectional view through a ves-.

sel in which my invention is embodied; Fig. 2 is a sectional view through a vessel Wall in which the invention is embodied in a form slightly different from that shown in Fig. 1; Fig. 3 is a sectional view through avessel embodying my invention and in which overlapping protective plates are em loyed, and, Fig. 4 is a sectional view throng a modified .form of the invention and showing the protective lates swaged to interlock with the wall an the coating.

If the vessel is of wood and metal, or wood in conjunction with metal, the mass to be used for the coating is melted and applied to the walls and bottom a in a hot, lastic state.

= To insure a durable connection .etween the mass and the wood or metal, and to strengthen or truss wall and bottom may be formed with vertical ribs or flanges 2 between which the mass is applied, beginning at the bottom and workin upwards, as shown in- Fig. l.

t the walls and bottom are of cementor the coating itself, the

concrete they are preferably covered with metal plates 0 before the coating is applied, as shown in Figs. 2, 3 ends. The plates are preferably made to overlap each other at their edges, as shown in Fig.- .23.. These and the Ii gage the coating and the concrete respectively, the coating being applied to the metal plates and not to the concrete directly. lhe

coating and concrete are thus enabled to dry independently from each other, andthe coating cannot become detached since it is locked to. the wall by means of the intermediate platesand ribs.

At the parts f 3) where the plates,

overlap each other, strips of tarred cardboard, fabric or the like may be interposed between the plates to'make tight joints.

Fig. 4 illustrates a modification in which, instead of having ribs or flanges d, the plates 0 are swaged dovetail-fashion at (Z to interlock with the wall a and coating b respectively.

Instead of the ribs (1 other metal devices ma be used for strengthening the coating an making a firm connection with the wall, for example strong metal net-work, clamps The term receptacle used in connection with the present invention does not only include portable vessels in the ordinary sense,

but also stationary structures such as cellars, tanks, basins and the like which are to contain liquid or the walls of, which are to prevent the "entrance of liquid, for example underground water.'

What I claim as my invention and desire to secure by United StatesLett'ers Patent is:

1. A receptacle for liquid and gaseous substances, comprising an outer shell,'an inner armor of iron providedwith inwardly projecting portions, and an inner non-conducting coating within which said projecting portions are embedded. g

2. A receptacle for liquid and gaseous substances, comprising an outer shell, an inner armor of iron made in overlapping sections and provided with inwardly-extending portions, said sections being suitably packed at v the overlapping joints, and a non-conducting coating rigidly secured to said armor by means of saidinWardly-extending ortions. The foregoing specification signe at Cassel this 29t day of November, 1907, v

- I PAUL ZURN. In presence of two witnesses LUDWIG GEIsMUs, Monrrz Knees". 

